peters



(-No Model.)

1 2 Sheets-Sheet 1. J. BOYD.

Patented May 3,1881.`

N. PETERS. Photoliihogmpher. Wnshingian. D. C.

(NoYModel.) 2 Sheets-#Sheet 2.

J. BOYD. Doubling'TWisting, and Windingv Machinery. No. 240,951. Patented May 3,1881.

FIGZ.

,Ufa/WMM@ N. PETERS. Phntovihogmpher. Washington, DA C.

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JOHN BOYD, OF SHETTLESTON, COUNTY OF LANARK, SCOTLAND.

DOUBLING, TWISTING, AND WINDING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 240,957, dated May 3, 1881.

Application iled May 3, 1880.

as to effect, in an improved and satisfactory: manner, the combined operations of doubling, twisting, and winding yarns, and so that each 1 spindle and the parts connected with it shall,

on the breaking or failing of any one of its set j of yarns, have its action arrested so speedily and in such a manner as to give extrenielylittle I trouble in piecin g and in rearranging the parts f and restarting the motions.

In my improved machinery the yarns proceed over a horizontal guide-rail, and thence down to detecter-levers, from which they ascend to a pair of feedingrollers, the upper one of which is driven and stationary in position, the lower one being on a lever, which is connected to the detecter and stopping mechanism in such a manner as, when a yarn breaks or fails, to lower the ylower roller and the yarns passing round it down out of 1 contact with the upper roller, whereby the l feeding action is stopped. Winding spindle, lit-ted with the usual flier, is driven by means of a cord, which, when a stoppage is required,is shifted from a fast to a loose pulley on the spindle by a rod,which simultaneously applies a brake to the fast pulley or spindle to insure quick stoppage. The detecterlevers are centered on a carrier, which, when a lever drops, is, by the action of a rotating camshaft on thelever, moved so as to release a catch which holds up a weighted stopping-lever, and thislever, when thus released, acts 011 the lower feeding-rollerlever above and on thccord-shifting and brake details below, so as to speedily stop the feeding above and' the twisting and winding below.

My improved machineryis shown in the accompanyin g two sheets of drawings.

Figure 1 on Sheet 1, is a transverse vertical section. The figures on Sheet 2 are enlarged The twisting and (No model.) Patented in Great Britain, November 13, 1877.

views of details, and will be most conveniently and intelligibly specified in the course of the following description.

The machine is in Fig. 1 represented as having the usual two sets of parts, one along each side of it, and those on the lefthand side are shown as with the yarns unbroken and the action going on, while on the right-hand side the parts are shown with a yarn broken and as shifted by the detecter-stopping action.

The framing of the machine consists, as usual, of transverse "ertical frames 21, connected by various longitudinal rails, the openings of the frame 21 being omitted in Fig. 1, in orderto simplifythe drawings. The bobbins 22, off which the yarns to be doubled and twisted are drawn, are set on pins fixed in inclined longitudinal boards 23, attached to the transverse frames 21; and at each side the yarns pass over a guide-rail, 24, and down to the detecter mechanism, which is carried on a longitudinal rail, 25. The yarns pass through the curls or guide-eyes of detecter-levers 26, and thence up to the feeding-rollers 27 28, and from them downward again to the iiier 29 of the twisting and winding spindle 30. The upper feeding-rollers, 2S, for a row of spindles are all fixed on one longitudinal shaft, which rotates continuously; but the lower feeding-roller, 27, for each set of yarns is separate from the others, and the feeding action in connection with any one spindle is stopped by lowering the respective lower roller, 27, out of contact with the continuously-rotating upper roller, 2S. Each lower feeding-roller, 27, is carried by a lever, 3l, which is centered in brackets formed on or iXed to a longitudinal rail, 32, and has a weight, 33; and adjustable rod 34: hung` on the end of its inner and longer arm.

Fig. 2 is an enlarged plan of the roller 27,

lever 3l, and weight 33, and Figs. 3 and 4 are end and side elevations thereof. The part of the lever 3l carrying the roller is made with -uncovered bearings to recieve the roller-journals, so that the roller can be easily removed and replaced; and the part 35, carrying one journahis made inthe same piece with the part carrying the other journal and with the lever itself, but is shaped to pass under the roller for the purpose of allowing the yarns to be easily placed upon or removed from the roller.

IOO

Just before reaching the feeding-roller 27 the yarns pass through a reciprocating guide, 36, which has the necessary traverse motion imparted to it by chains connected with the usual traversemotion cam. The detecter-levers 26 for a set of yarns are centered on a carrier, 37, guided so as to be movable transversely upon a bracket, 38, which is fixed to the longitudinal rail 25.

Fig. 7 is an enlarged plan of the bracket 38, and Figs. 8 and 9 are front and side elevations thereof. Fig. 10 isa plan of the carrier37, and Figs. 11 and 12 are front and side elevations thereof. The carrier 37 is made with a spindle, 39, at its inner end, which is guided in ahole in a cross-bar, 40,of thebracket 38, and which has a helical spring placed on it, tending to move it outward. lhe forward part of the carrier 37 rests and moves on the forward part, 4l, of the bracket 38, and is guided and secured by a pin fixed thereto and passing through a slot in the carrier. The detecter-levers 26 are centered on a wire, 42, passed through cheeks formed on the carrier, and two wires, 43, at the front of the carrier, limit the movements of the detecter-levers which pass between them.

0n a downwardly-proj ectin g part, at the front of the carrier 37, there is fixed a rectangular plate, 44, of hardened metal, the upper edge of which acts as a catch, which can support by the edge of a similar plate, 45, the weighted stoppin g-lever46. This lever46,which is shown in plan in Fig. 5 and in side elevation in Fig. 6, is centered at the back of the bracket 38, and is made with a short arm, 47, extending from its center inward, so as to be under the bottom end of the rod 34, connected to the roller-lever 31 above, while the forward part of the lever 46 has jointed to it a rod, 48, passing downward to the cord-shifting and brake details. The catch-plates 44 45 can be turned so as to present fresh edges when thosein use are worn, and they present considerable breadth of surface, while requiring an extremely' small movement to effect their disengagement. This construction of detecter-lever, movable carrier, bracket, and catch-plates with the rotating cam-shaft I do not claim in this case, as it is fully described and claimed in an application filed by me April 30, 1880, serial number8,7 33.

When a yarn breaks or fails its detecter-lever 26 drops, bein g suitably poised for that purpose, and then a positive force comes into action to shift the stopping details, the front end of the detecterlever getting in the way of a continuously-rotating cam or wiper shaft, 49, (partly covered by a protecting plate,) which pushes the detecter-lever inward and with it the carrier 37. The catch-plate 44 of the earrier being thus moved from under that, 45, of the stoppin g-lever 46, this lever descends, its inner end, 47, rising, and, by means of the rod 34, raising the inner end of the lever 31 and thereby lowering the lower feeding-roller, 27, and stoppin g the feeding-action.

The twisting and winding spindle 30 is, as usual, supported by a footstep-rail, 50, and by a bolster-rail, 51, the bobbin 52 being supported on the usual traversing rail, 53. Between the two rails 50 51 the spindle 3() has on it fast and loose pulleys 54 55, the former, which is uppermost, being fixed to the spindle, while the latter has an elongated boss, which projects down into and rests in a lubricating-cup, 56, fixed to the spindle. Abrakelever, 57, which is shown in plan in Fig. 13 and in side elevation in Fig. 14, is centered by its outer forked end in lugs on the rail 5l, and its forked part passes on each side of the upwardly-projecting boss of the fast pulley 54. Small blocks 58, of wood, leather, or other suitable material, are fixed in sockets in the inner and under sides of the forked part of the lever 57, to act frictionally on the fast pulley 54, when the lever is allowed to turn down, the lever being made heavy enough to apply the blocks 5S with the requisite force. Ihe brake-lever is formed with a notched part, which passes through a stirrup, 59, adj ustably connected to the rod 4S, which depends from the stopping-lever 46, and below the stirrup there is attached a fork, 60, which acts on the dri vin g-cord. 7 hen the stopping-lever 46 is raised and engaged with the detecter-carrier 37 it b v the rod 48 holds up the brake-lever 57 and also the fork 60, keeping the former out of action and the drivin g-cord on the fast pulley 54; but when a yarn breaks or fails, and the stoppin glever 46 is disengaged, the cord is instantly shifted to the loose pulley 55 and the brake applied, these actions takin gplace simultaneously with the lowering of the lower feeding-roller, 27, as hereinbefore explained.

rllhe cam-shafts 49 and rollers 28 may be driven from some moving part ofthe machine, as may be found convenient. In the drawings I have illustrated by dotted lines an arrangement of belting and gearing in which the camshaft 49 on one side of the machine is driven from the shaft 19 by a belt passing over a pulley on the latter and over a pulley on an intermediate shaft geared to the shaft 49, while the shaft of the roller 28 on the same side is driven by a belt passing over a pulley on the intermediate shaft and over a pulley mounted on an adjustable stud, and having a sleeve geared to the roller-shaft. The roller and cam shafts on the other side of the machine may be driven from the shaft 20 in a similar manner.

I am aware that it is not new to combine detecter mechanism with a pair of rollers between which the yarn passes, and one of which is movable and driven by the other, so that when a thread breaks the movable roller is moved from contact with the drivin g-roller 5 but the movable roller in such cases has been the upper roller 5 hence when a thread broke in such a machine the broken end, being on the driving-roll, would lap and be wound around the rotating shaft. In order to avoid. this difficulty I mount the lower roll, 27, in bearings in a movable lever, 31, so that when a thread breaks the lower roll falls from contact with IOO IIO

IIS

the upper roll, and the movement of this roll with the broken thread, as shown at the right hand of Fig. l, atonce ceases.

I claim as my invention- 1. rEhe combination of Winding mechanism and detecter and stopping devices, substantially as described, with an upper roll, 2S, ro- Jrating mechanism therefor, .a lower roll, 27, driven by contact with the upper roll, a Inovable lever, 3l, carrying the lower roll, and operated by the said detecter devices to move the lower roll from contact with the upper one.

2. The combination of cain-shaft49, detecterlevers 26, bracket-carrier 37, and lever 46, with a driving-pulley, Hier-spindle 30, provided with fast and loose pulleys, and the cord-shifting rod 4S, connected at one end to the lever scribing witnesses.

JOHN BOYD. Witnesses:

EDMUND HUNT, Loon MOORE. 

